Roller for roller-gins.



No. 657,733. Patented sept. n, |900. .1. w. GRAVES.

RULLER FOR ROLLER GINS.

(Application led Jnx. 24, 1900.)

(No Model.)

Inventor Tu: unime PETERS co, Pumoumo.. WASHINGTON. D. c.

UNITED STATES PATENT OFFICE- JOHN W. GRAVES, OF COVINGTON, TENNESSEE.

ROLLER FOR ROLLER-GINS.

SPECIFICATION forming part of Letters Patent No. 657,733. datedSeptember 1 1, 1900.

Application filed January Z4, 1900. Serial No. 2,573. (No model.)

T0 all whoml if 11m/y concern:

Beit known that I, JOHN W. GRAVES, a citi- Zen of the United States,residing at Oovin gton, in the county of Tipton and State of Tennessee,have invented a certain new and useful Improvement in Rollers forRoller-Gins, of which the following is a specification.

My invention relates to various new and useful improvements in rollersfor roller-grins; and the invention is particularly adapted for use inconnection with the roller-girls of the type described in myPatent No.633,994, dated October 3, 1899, in which a plurality of rotatingginning-rollers are carried in a rotating frame, so as to successively7engage with a perforated apron, seed-cotton being fed to the oppositeside of said apron and the lint therefrom being blown through theinterstices of the apron by air-blasts, so as to be separated from theseeds by the action of the ginning-rollers. Myimproved rollerisparticularly adapted for use with roller-girls of this type,because thewear between the rollers and the perforated apron will not tend tosmooth or polish the surface of the roller and reduce its ginningcapacity. `'When my improved roller is employed in connection with arollergin of this type, it retains unimpaired its desirable roughenedperiphery until the ginning-surface thereof may be entirely worn out.This characteristic of my improved roller fits it particularly for thespecific use mentioned; but it will be understood, of course, that itmay be employed in connection with any other variety of roller-gin, withthe resulting advantages of rapidity of operation and of greatdurability.

Broadly considered, my improved roller for roller-gins comprises asuitable supporting or carrying core having a ginning-surface which isformed in whole or in part of multitudinous projecting ginning-teetharranged atan angle to the periphery of the roll. Preferably theginning-surface is formed entirely or in part of bristles, such ashorsehair, which are arranged in the manner stated. In the constructionof the improved roller, assuming bristles to be used for the purpose,they are preferably secured tightly in place within confined areasbetween adjacent layers of a suitable flexible material, preferablyleather. Vhile the ginning surface or surfaces of the improved rollermay he arranged in any way so as to occupy planes at an angle to theperiphery of the roller, I prefer to employ alternate elliptical disksof leather and of a suitable ginning material, such as horsehair, whichare secured in place upon a cylindrical support by any suitable clampingdevices.

In order that the invention may be better understood, attention isdirected to the'accompanying drawings, forming a part of thisspeciiication, and where, as a convenient embodiment of my presentinvention, I illustrate a ginning-roller composed of alternateelliptical disks of horsehair and leather sccured upon a cylindricalshaft.

Figure l is a plan view; Fig. 2, a section on the line 2 2, and Fig. 3an end view.

In all of the above Views corresponding parts are represented by thesame numerals of reference.

1 represents a cylindrical core or shaft carrying alternate ellipticaldisks 2 and 3, of leather and of horsehair, respectively, the latterbeing the preferred ginning-surface. By utilizing elliptical disks ofthese materials they will occupy an inclined plane on the shaft, asshown. At the extreme ends of the roll it will be observed that thedisks of leather and of horsehair will not be continuons, but willpresent the form of partial disks. The Ahorsehair material may be cutout of sheets or may be formed in strips wound into disk form. The disksmay be held in place on the core l in any suitable way-as, for eX-ample, by means of a clamping-nut It, which clamps all of the disks inplace against a corresponding nut at the other end. When my improvedginning-roller is employed with a gin of the type described, the chatingof the leather disks against the edges of the slots in the screen causesthe leather or other material, if used, to be maintained always in aroughened condition, so that the ginning capacity of the roller will bein no way impaired. As the roller becomes worn in use the bristles orother ,grinning-points projecting radially from the surface of theroller become merely shortened, but their effectiveness is not lessened.

. By arranging the ginning-surface of a ginning-roller in such a waythat it presents ridges or areas Which extend at an angle to IOO theplane of rotation I am enabled to effect a ginning operation throughout-the entire extent of the roller Without the necessity of making theentire surface ofthe roller of the ginning material. f

While I prefer to use horsehair for the ginning-surface in my improvedroller, it will be Iunderstood that any other material presentingmultitudinous points for engagement and entanglement with the fibers maybe employed as a substitute therefor, and while it is desirable to useleather surfaces alternating with such bristle-like material othermaterials can be used instead of leather, or such materials may bedispensed with.

Having now described my invention, what l claim as new, and desire tosecure by VLetters Patent, is as follows:

l. As a new article of manufacture, animproved roller for roller-gins,comprising a core or shaft, and elliptical disks of material presentinginnumerable points carried by said core or shaft at an angle to theplane of rotation thereof, substantially as set forth.

2. As a new article of manufacture, an improved roller for roller-gins,comprising a core or shaft, elliptical disks of material presentinginnumerable points carried by said core or shaft at an angle to theplane of rotation thereof, and elliptical disks of a flexible materialcarried by said core or shaft in alternation with the disks ofbristle-like inaferial, substantially as set forth.

3. As a new article of manufacture, an improved roller for roller-gins,comprising a core or shaft, and elliptical disks of horsehair carried bysaid core or shaft at an angle to the plane of rotation thereof,substantially as set forth. n

4. Asa new article of manufacture, an improved roller for roller-gins,comprising a core or shaft, elliptical disks of horsehair carried bysaid core or shaft at an angle/ to the plane of rotation thereof, andelliptical disks ofI fibrous material carried by said core or shaft inalternation with the horsehair disks, substantially as set forth.

5. As a new article of manufacture, an improved roller for roller-gins,comprising a coreor shaft, elliptical disks of horsehair carried by saidcore or shaft at anangle to the plane of rotation thereof, andelliptical disks of leather carried by said core or shaft in alternationwith the horsehair disks, substantially as set forth.

This specication signed and witnessed this llth day of January, 1900.

JOHN w. GRAVES.

vWitnesses:

FRANKl L. DYER, JNO. R. TAYLOR.

